扫过(35-10)/60 = 5/12个圆
弧度为5/12 * 2π = (5/6)π
面积为5/12 * (π*r²) ≈ 5/12 * 3.14 * 5 * 5 = 32.708 cm²
弧长5/12 * (2πr) ≈ 5/12 * 2 * 3.14 * 5 = 13.083 cm